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| author | Chuck Lever <chuck.lever@oracle.com> | 2020-10-19 13:00:29 -0400 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2020-11-30 14:46:35 -0500 |
| commit | 0dfdad1c1d1b77b9b085f4da390464dd0ac5647a (patch) | |
| tree | 04ef3bb1d8070e894a1918055e31dfc646f281fc /fs/nfsd/trace.h | |
| parent | 788f7183fba86b46074c16e7d57ea09302badff4 (diff) | |
| download | lwn-0dfdad1c1d1b77b9b085f4da390464dd0ac5647a.tar.gz lwn-0dfdad1c1d1b77b9b085f4da390464dd0ac5647a.zip | |
NFSD: Add tracepoints in nfsd_dispatch()
For troubleshooting purposes, record GARBAGE_ARGS and CANT_ENCODE
failures.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd/trace.h')
| -rw-r--r-- | fs/nfsd/trace.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h index 89f218d0279c..0bf1707bd846 100644 --- a/fs/nfsd/trace.h +++ b/fs/nfsd/trace.h @@ -12,6 +12,66 @@ #include "export.h" #include "nfsfh.h" +#define NFSD_TRACE_PROC_ARG_FIELDS \ + __field(unsigned int, netns_ino) \ + __field(u32, xid) \ + __array(unsigned char, server, sizeof(struct sockaddr_in6)) \ + __array(unsigned char, client, sizeof(struct sockaddr_in6)) + +#define NFSD_TRACE_PROC_ARG_ASSIGNMENTS \ + do { \ + __entry->netns_ino = SVC_NET(rqstp)->ns.inum; \ + __entry->xid = be32_to_cpu(rqstp->rq_xid); \ + memcpy(__entry->server, &rqstp->rq_xprt->xpt_local, \ + rqstp->rq_xprt->xpt_locallen); \ + memcpy(__entry->client, &rqstp->rq_xprt->xpt_remote, \ + rqstp->rq_xprt->xpt_remotelen); \ + } while (0); + +TRACE_EVENT(nfsd_garbage_args_err, + TP_PROTO( + const struct svc_rqst *rqstp + ), + TP_ARGS(rqstp), + TP_STRUCT__entry( + NFSD_TRACE_PROC_ARG_FIELDS + + __field(u32, vers) + __field(u32, proc) + ), + TP_fast_assign( + NFSD_TRACE_PROC_ARG_ASSIGNMENTS + + __entry->vers = rqstp->rq_vers; + __entry->proc = rqstp->rq_proc; + ), + TP_printk("xid=0x%08x vers=%u proc=%u", + __entry->xid, __entry->vers, __entry->proc + ) +); + +TRACE_EVENT(nfsd_cant_encode_err, + TP_PROTO( + const struct svc_rqst *rqstp + ), + TP_ARGS(rqstp), + TP_STRUCT__entry( + NFSD_TRACE_PROC_ARG_FIELDS + + __field(u32, vers) + __field(u32, proc) + ), + TP_fast_assign( + NFSD_TRACE_PROC_ARG_ASSIGNMENTS + + __entry->vers = rqstp->rq_vers; + __entry->proc = rqstp->rq_proc; + ), + TP_printk("xid=0x%08x vers=%u proc=%u", + __entry->xid, __entry->vers, __entry->proc + ) +); + #define show_nfsd_may_flags(x) \ __print_flags(x, "|", \ { NFSD_MAY_EXEC, "EXEC" }, \ |